Patent Number: 7,102,400

Title: Phase locked loop charge pump and method of operation

Abstract: A charge pump includes a current source capable of generating a reference current. The charge pump also includes a first current mirror capable of conducting a first current. The charge pump further includes a second current mirror capable of conducting a second current and the reference current. In addition, the charge pump includes an output coupled to the first and second current mirrors and capable of providing one of the first and second currents as an output of the charge pump. The first current mirror may be capable of conducting the first current and a second reference current. The second current mirror may be capable of conducting the second current, the reference current, and the second reference current.

Inventors: Mulders; Adrianus G. ('s-Hertogenbosch, NL)

Assignee: SiTel Semiconductor B.V.

International Classification: H03L 7/06 (20060101)

Expiration Date: 9/05/02018